Collaborative Research: Bolometric Studies of Cosmic Star Formation History

合作研究：宇宙恒星形成历史的辐射热测量研究

• 批准号: 0708793
• 负责人: Amy Barger
• 金额: $ 28.32万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-08-15 至 2011-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0708793&HistoricalAwards=false
• 关键词: Collaborative; Research; Bolometric; Studies; Cosmic

AST-0709356/AST-0708793Cowie/BargerThis is a collaborative project led by Dr Cowie. Sub-millimeter observations with the revolutionary SCUBA camera on the James Clerk Maxwell Telescope on Mauna Kea, Hawaii, revealed the existence of a population of dust-obscured, ultra-luminous galaxies that dominates star formation in the high-redshift Universe. The new camera, SCUBA-2, speeds up the mapping of wide fields by almost three orders of magnitude, and will dramatically expand understanding of the sub-millimeter Universe and the history of dusty star formation. This project will carry out a SCUBA-2 survey of two heavily studied fields of the Great Observatories Origins Deep Survey (GOODS), during weather conditions suitable for observing at a wavelength of 450-microns. Since the confusion limit is lower at this wavelength, which is shorter than other wavelengths used, these data will be able to (i) measure the more typical sources contributing to the sub-millimeter background, (ii) measure fluxes close to the rest wavelength peak of the blackbody distribution, and (iii) obtain much more accurate positions for the sources. Combining the sub-millimeter data with radio, infrared, optical, and X-ray data, from space and from the ground, will determine the multi-wavelength properties of the distant, heavily dust-obscured sources, and provide accurate positions for spectroscopic follow-up. The research will determine redshifts, luminosities, and star formation rates, and thus trace the extent and evolution of obscured star formation in the distant Universe.Understanding the star formation history of the universe is a major goal of modern astronomy, and of great public interest. This research will inform popular science articles, web sites, and frequent talks to broad sections of the technical and lay communities. Previous data collected by these investigators have been made available to the community and have proved valuable for many outside projects: this practice of regular release will continue with the new survey data. Both investigators continue to promote diversity and cultural interaction at their respective institutions, including students from throughout the Pacific arena (in Hawaii), and a strong effort to involve women (in Wisconsin), who remain a vastly under-represented group.

AST-0709356/AST-0708793COWIE/BARGERTHIS是由Cowie博士领导的合作项目。 夏威夷莫纳·基亚（Mauna Kea）的詹姆斯·麦克斯韦（James Clerk Maxwell）望远镜上的革命性水肺摄像头的次数观察结果揭示了存在众多尘埃刺激的超流星系，这些星系占主导地位，这些星系占主导地位，这些星系占主导地位。 新的相机Scuba-2将范围的映射加快了近三个数量级，并将大大扩展对亚毫米宇宙和Dusty Star组的历史的理解。 该项目将在适合在450微米的波长的天气条件下进行大量观察者起源深度调查（商品）的两个经过深入研究的深度调查（商品）的水肺-2调查。 由于该波长的混淆极限比其他所使用的波长较短，因此这些数据将能够（i）测量对亚毫米背景有助于的较典型的源，（ii）测量接近黑体体分布的静止波长峰，并且（iii）获得更准确的位置。 从空间和地面上将亚毫米数据与无线电，红外，光学和X射线数据相结合，将确定远处，大量灰尘的源头的多波长特性，并为光谱随访提供准确的位置。 该研究将确定红移，灯光和恒星形成率，从而追踪遥远宇宙中被模糊的恒星形成的程度和演变。理解宇宙的恒星形成历史是现代天文学和极大的公共利益的主要目标。 这项研究将为流行的科学文章，网站提供信息，并频繁地与技术和外行社区的广阔部分进行对话。 这些调查人员收集的先前数据已被提供给社区，并证明对许多外部项目很有价值：这种常规发布的做法将继续使用新的调查数据。 两位调查人员都在各自机构（包括来自太平洋竞技场（夏威夷）的学生）中促进多样性和文化互动，并为使妇女（在威斯康星州）的努力做出了巨大的努力，即在威斯康星州，她们仍然是一个众多代表性不足的群体。